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Stellar Sea Lion Bull on Haul Out

The Alaska Ecosystems Program conducts research on Steller sea lions and northern fur seals. Research projects are designed to assess the status of these species under the ESA and MMPA and to improve knowledge of their ecology and behavior.  In addition, research on these species is directed at gaining a better understanding of the role that these species play in the Bering Sea and Gulf of Alaska ecosystems in order to provide advice for management of human activites that may affect the conservation and recovery of these species. 

Program Leader: Tom Gelatt

Recent Reports, Publications, and Posters

Recent Cruises & Projects


Dr. Tom Gelatt explains how NOAA Fisheries scientists are working to
protect and study threatened Steller sea lions.

Quarterly Reports Publications
  • ZEPPELIN, T. K., D. S. JOHNSON, C. E. KUHN, S. J. IVERSON, and R. R. REAM. 2015. Stable isotope models predict foraging habitat of northern fur seals (Callorhinus ursinus) in Alaska. PLoS One 10(6):e0127615. DOI: 10.1371/journal.pone.0127615. (Open Access).  Online.
     
  • JOY, R., M. G. DOWD, B. C. BATTAILE, P. M. LESTENKOF, J. T. STERLING, A. W. TRITES, and R. D. ROUTLEDGE. 2015. Linking northern fur seal dive behavior to environmental variables in the eastern Bering Sea. Ecosphere 6(5):75. DOI: 10.1890/ES14-00314.1 (Open Access).  Online.
     
  • ALTUKHOV, A. V., R. D. ANDREWS, D. G. CALKINS, T. S. GELATT, E. D. GURARIE, T. R. LOUGHLIN, E. G. MAMAEV, V. S. NIKULIN, P. A. PERMYAKOV, S. D. RYAZANOV, V. V. VERTYANKIN, and V. N. BURKANOV. 2015. Age specific survival rates of Steller sea lions at rookeries with divergent population trends in the Russian Far East. PloS One 10:e0127292 DOI: 10.1371/journal.pone.0127292. (Open Access).  Online.
     
  • CONN, P. B., D. S. JOHNSON, J. M. Ver HOEF, M. B. HOOTEN, J. M. LONDON, and P. L. BOVENG. 2014. Using spatiotemporal statistical models to estimate animal abundance and infer ecological dynamics from survey counts. Ecol. Monogr. 85:235-252. DOI: 10.1890/14-0959.1. 
     
  • MESCHERSKY, I. G., M. A. KULESHOVA, D. I. LITOVKA, V. N. BURKANOV, R. D. ANDREWS, G. A. TSIDULKO, V. V. ROZHNOV, and V. Y. ILYASHENKO. 2015. Occurrence and distribution of mitochondrial lineages of gray whales (Eschrichtius robustus) in Russian Far Eastern seas. Biol. Bull. 42:34-42. 
     
  • FOWLER, C. W., and L. K. JOHNSON. 2015. Reality-based marine protected areas or the eastern Bering Sea. U.S. Dep. Commer., NOAA Tech. Memo. NMFS-AFSC-294, 109 p. (.pdf, 25.6 MB).  Online.
     
  • SKINNER, J. P., Y. MITANI, V. N. BURKANOV, and R. D. ANDREWS. 2014. Proxies of food intake and energy expenditure for estimating the time-energy budgets of lactating northern fur seals Callorhinus ursinus. J. Exp. Mar. Biol. Ecol. 461:107-115. 
     
  • PERMYAKOV, P. A., S. D. RYAZANOV, A. M. TRUKHIN, E. G. MAMAEV, and V. N. BURKANOV. 2014. The reproductive success of the Steller sea lion Eumetopias jubatus (Schreber, 1776) on Brat Chirpoev and Medny Islands in 2001-2011. Russ. J. Mar. Biol. 40:440-446. 
     
  • Additional recent Alaska Ecosystems Program publications


Posters
  • Stable Isotope Model Predicts Foraging Habitat of Northern Fur Seals (Callorhinus ursinus) in Alaska
    By:  T. K. ZEPPELIN, D. S. JOHNSON, C. E. KUHN, S. J. IVERSON, R. R. REAM
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2015
    (2015 poster, .pdf, 6.13 MB)   Online.

     
  • Linking Northern Fur Seal Behavior with Prey Distributions: the Impact of Temporal Mismatch Between Predator and Prey Surveys
    By:  CAREY KUHN
    Conference:  Bio-logging Science Symposium (5th International), Strasbourg, France, Sept 2014
    (2014 poster, .pdf, 10.5 MB)   Online.

     
  • Development and Field Testing a Satellite-linked Fluorometer for Marine Mammals: Shedding Light on the Unknown
    By:  MICHELLE LANDER, MELINDA HOLLAND, TODD LINDSTROM, ALBERT FRANZHEIM, MATTHEW RUTISHAUSER, ROGER HILL
    Conference:  Bio-logging Science Symposium (5th International), Strasbourg, France, Sept 2014
    (2014 poster, .pdf, 2.33 MB)   Online.

     
  • Development and Field Testing a Satellite-linked Fluorometer for Marine Mammals: Shedding Light on the Unknown (Phase II)
    By:  MICHELLE LANDER, MELINDA HOLLAND, TODD LINDSTROM, ALBERT FRANZHEIM, MATTHEW RUTISHAUSER, ROGER HILL
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 60.6 MB (** Note large file size **))   Online.

     
  • Re-examining Habitat Segregation and Foraging Effort of Northern Fur Seals After 15 Years of Decline
    By:  CAREY KUHN, JEREMY STERLING, ROLF REAM
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 3.76 MB)   Online.

     
  • Steller Sea Lion Diet and Population Trends in the Aleutian Islands
    By:  LOWELL FRITZ, DOMINIC TOLLIT, EDWARD LAMAN, KRISTI MILLER, ANGELA SCHULZE, JAMES THOMASON, WILLIAM WALKER, TONYA ZEPPELIN, THOMAS GELATT
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, n-011, n-042, n-017)   Online.

     
  • Steller Sea Lion Decline at Medny Island Rookery, Russia, in Summer 2013
    By:  VLADIMIR BURKANOV, ANNA KIRILLOVA, EVGENY MAMAEV, SERGEY RYAZANOV, THOMAS GELATT
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 2.84 MB)   Online.

     
  • Apparent Age of First Reproduction in Steller Sea Lions on Russian Rookeries
    By:  VLADIMIR BURKANOV, ALEXEY V. ALTUKHOV, RUSSEL ANDREWS, EVGENY G. MAMAEV, VICTOR NIKULIN, PETER A. PERMYAKOV, SERGEY D. RYAZANOV, VLADIMIR V. VERTYANKIN, DONALD G. CALKINS, THOMAS R. LOUGHLIN, THOMAS GELATT
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 3.16 MB)   Online.

     
  • Additional recent Alaska Ecosystems Program poster presentations



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